Control of reflections of a display device

    公开(公告)号:US12117621B2

    公开(公告)日:2024-10-15

    申请号:US18374451

    申请日:2023-09-28

    申请人: RealD Spark, LLC

    摘要: Reflections from a display device are controlled using retarders arranged on the output side of a display panel which outputs light with a predetermined polarization state. First and second planes of incidence are defined in respect of first and second rays of light output from the device and first and second normals to first and second surfaces of optically transmissive material at first and second points at which the first and second rays of light are reflected. The retarders are selected to cause the polarization state of the first ray to be linearly polarized in a direction that is in the first plane of incidence, and to cause the polarization state of the second ray to be linearly polarized in a direction that is in the second plane of incidence. The reflections from the surfaces are minimized because for both surfaces the polarization direction is in-plane.

    DISPLAY DEVICE
    8.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号:US20240343116A1

    公开(公告)日:2024-10-17

    申请号:US18752817

    申请日:2024-06-25

    IPC分类号: B60K35/60 B60K35/22 B60K35/40

    摘要: A display device includes a light emitting element disposed in a region adjacent to a transflective object in a vehicle and a light controlling means disposed on a route that a first light and a second light emitted from the light emitting element propagate. The first light is controlled to propagate out of the display device at a first angle ranged from 30 to 45 degrees and toward the transflective object and the second light is controlled to propagate out of the display device at a second angle ranged from 0 to 5 degrees. The first angle and the second angle are between a normal direction of the display device and the first light and the second light controlled through the light controlling means respectively. A first ratio of a light intensity of the first light to that of the second light is less than or equal to 14%.